
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Show in Figure 1 is the water flow system. The velocity head difference is . Volume flow rate is . The heights are and , respectively. The power output from the motor is , . The energy added by the pump is . The energy loss between point 1 and 2 is .
Calculate 1) power delivered by the fluid to the motor in kW. ___________kW
![### Water Flow System Overview
#### Diagram Description
The given diagram displays a water flow system, which includes a motor, a pump, and various points in the system where measurements are taken (labeled as points 1 and 2). The system has the following notable components:
- **Motor and Pump:**
- The motor drives the pump that moves water through the system.
- The pump is situated near the valve where the flow is regulated.
- **Piping and Flow Points:**
- The piping system includes height changes denoted by \(h1\) and \(h2\).
- Heights are specified as \(h1 = 1.0 \, m\) and \(h2 = 2.0 \, m\).
#### Known Parameters
- **Velocity Head Difference**:
\[
\frac{v_1^2 - v_2^2}{2g} = 2.0 \, m
\]
- **Volume Flow Rate**:
\[
Q = 0.5 \, m^3/s
\]
- **Heights**:
\[
h1 = 1.0 \, m, \quad h2 = 2.0 \, m
\]
- **Motor Power Output**:
\[
P_0 = 7.848 \, kW
\]
- **Motor Efficiency**:
\[
e_{M, motor} = 80\%
\]
- **Energy Added by the Pump**:
\[
h_A = 3.0 \, m
\]
- **Energy Loss Between Points 1 and 2**:
\[
h_L = 0.2 \, m
\]
#### Problem Statement
Calculate the power delivered by the fluid to the motor \( P_R \) in \( kW \).
### Solution Steps
To solve for the power delivered by the fluid to the motor, we follow these steps:
1. **Convert Motor Efficiency to Decimal:**
\[
e_{M, motor} = \frac{80}{100} = 0.8
\]
2. **Find Motor Power Received by the Water:**
Using the efficiency formula:
\[
P_R = \frac{P_0}{](https://content.bartleby.com/qna-images/question/0daff6b4-7b3b-4798-aa81-781ef422795b/9725e33a-65a6-4003-a260-8ea05e017ef3/fhpyehk_thumbnail.png)
Transcribed Image Text:### Water Flow System Overview
#### Diagram Description
The given diagram displays a water flow system, which includes a motor, a pump, and various points in the system where measurements are taken (labeled as points 1 and 2). The system has the following notable components:
- **Motor and Pump:**
- The motor drives the pump that moves water through the system.
- The pump is situated near the valve where the flow is regulated.
- **Piping and Flow Points:**
- The piping system includes height changes denoted by \(h1\) and \(h2\).
- Heights are specified as \(h1 = 1.0 \, m\) and \(h2 = 2.0 \, m\).
#### Known Parameters
- **Velocity Head Difference**:
\[
\frac{v_1^2 - v_2^2}{2g} = 2.0 \, m
\]
- **Volume Flow Rate**:
\[
Q = 0.5 \, m^3/s
\]
- **Heights**:
\[
h1 = 1.0 \, m, \quad h2 = 2.0 \, m
\]
- **Motor Power Output**:
\[
P_0 = 7.848 \, kW
\]
- **Motor Efficiency**:
\[
e_{M, motor} = 80\%
\]
- **Energy Added by the Pump**:
\[
h_A = 3.0 \, m
\]
- **Energy Loss Between Points 1 and 2**:
\[
h_L = 0.2 \, m
\]
#### Problem Statement
Calculate the power delivered by the fluid to the motor \( P_R \) in \( kW \).
### Solution Steps
To solve for the power delivered by the fluid to the motor, we follow these steps:
1. **Convert Motor Efficiency to Decimal:**
\[
e_{M, motor} = \frac{80}{100} = 0.8
\]
2. **Find Motor Power Received by the Water:**
Using the efficiency formula:
\[
P_R = \frac{P_0}{
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Please write solution neatly and if scanning pages, please make sure the writing is distunguishable from the background. Please use graph attached. Thanks I'll give positive feedbackarrow_forwardOn a single plot, show curves that show the relationship between the pressure generated by the pump as a function of flow rate of water at 20 °C through the three branches of the piping system shown below (this phrasing means that AP should be on the y axis and flow rate on the x axis; the range of the pressure should be 0 to ~1 MPa). (Branches 1 and 3 are in the same plane; branch 2 is located 5 m above the other two branches) Pump Some important information: A 10 m Branch 2 Branch 1 20 m from point B to pump Branch 3 B 5 m Pipe inner diameter: 0.0254 m Pipe material: copper Typical mass flow rate of interest: 0.5 kg/s Ignore minor losses of tee's at points A and B and any features of branch 3 Consider minor losses of two 90° elbows in branch 2arrow_forwardFluid Mechanics Laboratory (a report on this experiment is required) Experiment No.1 Reynolds numberarrow_forward
- Assemble and describe the operation of a simple piping system (with only one branch, or at most two branches) for the industrial process of alcohol and sugar. Use the following equipment: Pumps, valves, heat exchangers, pressure gauges, flow meters, elbows and flanges For this system, what would be the most appropriate pressures and flows?arrow_forwardProblem 5.1 When a liquid flows over a surface, the velocity may vary with position. The equation or graph that describes this variation is known as the velocity profile. A thin layer of liquid, draining from an inclined plane as shown in the figure, will have an analytic velocity profile described by the following equation. u Uo = U. [2) -²] where U is the surface velocity, i.e., velocity of the water at the surface of the layer, u is the velocity of the water at any y-position in the layer, and h is the thickness of the layer. A graph of this velocity profile is shown in the figure. h u(y) Direction of gravity a) If the plane has constant width b into the paper, develop an expression for the volumetric flow rate in the film in terms of h, Uo, and b. [Hint: Use a differential area element dA = b dy and integrate from y = 0 to y = h.] b) Calculate the mass flow rate of liquid down the inclined plane, in kg/s, if the liquid has a specific gravity of 0.87 and b = 0.3 m, h = 5 mm, and U₁…arrow_forwardFrom the provided pump table: 1. Calculate the power required at the pump shaft given that the water density and flow rate are 1000kg/m³ and 400L/s respectively. <-- Do this calculation in the same excel file as the graph 2. Construct a Q – H and Q– n curves of this pump on one graph. <-- Attach an Excel file of your graph using the link below. Units are required and will be marked. n (%) H(m) Q (m/s) 56 0.000 25 55 0.010 45 54 0.020 60 52 0.030 64 49 0.040 62 42 0.050 48 34 0.060 32 20 0.070 18 8 0.080arrow_forward
- Using the jet engine lecture notes and its charts, derive a mathematical expression relating a jet engine’s dry weight with its take-off thrust. Write the expression in imperial units and then convert it to SI units.arrow_forwardNote: Use three decimal places and no need to input the unit. Steam enters a horizontal turbine at 350 lbf/in2 absolute, 580°C, and 12 ft/s and is discharged at 110 ft/s and 25°C saturated conditions. The mass flow is 2.5 lbm/s, and the heat losses are 7 Btu/lb of steam. If head losses are negligible, how much horsepower does the turbine develop? (in hp)arrow_forwardNeed quick explanation, How to get 3m/s. [Do not copy]arrow_forward
- Determine the operating flow rate and net head of the pumping system in the pipe network that you have selected based onyour ÖN number and using the curves in the graph. Show the operating point on the graph and write its values (you can draw the graph in excel) ÖN= 5arrow_forwardElectric drives have a wide range of applications in various industries. One common application is in the manufacturing industry, where electric drives are used to control the speed and torque of electric motors that drive various machines and equipment. For example, electric drives are used in conveyor systems, pumps, fans, compressors, and machine tools to regulate the motion and force required for different manufacturing processes. 1. Create simple Process Flow Diagram (PFD) of electric motor used in pumps.arrow_forwardcan you help me with part c pleasearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY

Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press

Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON

Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education

Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY

Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning

Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY